Mutagenicity in Salmonella typhimurium TA98 of the serum extract of the organic matter derived from airborne particulates

1983 ◽  
Vol 117 (1-2) ◽  
pp. 41-46 ◽  
Author(s):  
Nobuyuki Takeda ◽  
Kiyoshi Teranishi ◽  
Kokichi Hamada
Keyword(s):  
Organic Matter ◽  
Salmonella Typhimurium ◽  
Airborne Particulates ◽  
Serum Extract

Oxidative stress, DNA damage, and mutagenicity induced by the extractable organic matter of airborne particulates on bacterial models

2019 ◽  
Vol 104 ◽  
pp. 59-73 ◽  
Author(s):  
Ekaterini Velali ◽  
Anastasia Pantazaki ◽  
Athanasios Besis ◽  
Theodora Choli-Papadopoulou ◽  
Constantini Samara
Keyword(s):  
Oxidative Stress ◽  
Dna Damage ◽  
Organic Matter ◽  
Airborne Particulates ◽  
Extractable Organic Matter

scholarly journals Examination of mutagenicity on organic extracts from airborne particulates using Salmonella typhimurium TA1535/pSK1002.

Eisei kagaku ◽  
1985 ◽  
Vol 31 (2) ◽  
pp. 95-100
Author(s):  
HISASHI MATSUMOTO ◽  
TAKASHI KASHIMOTO ◽  
SUMIO GOTO ◽  
HIDETSURU MATSUSHITA
Keyword(s):  
Salmonella Typhimurium ◽  
Airborne Particulates ◽  
Organic Extracts

Salmonella on Broiler Carcasses as Affected by Fresh Water Input Rate and Chlorination of Chiller Water

1979 ◽  
Vol 42 (12) ◽  
pp. 954-955 ◽  
Author(s):  
J. E. THOMSON ◽  
J. S. BAILEY ◽  
N. A. COX ◽  
D. A. POSEY ◽  
M. O. CARSON
Keyword(s):  
Organic Matter ◽  
Salmonella Typhimurium ◽  
Fresh Water ◽  
Cross Contamination ◽  
Input Rate ◽  
Fresh Water Input

Broiler carcasses, each inoculated with about 1000 cells of a marker strain of Salmonella typhimurium, and uninoculated carcasses were prechilled and chilled in a simulated commercial chilling process. For each experiment, fresh water input was either 1.90 liters (0.50 gal) or 0.95 liters (0.25 gal) per carcass, and the chlorine level was 0, 20 or 50 ppm. The rate of fresh water input had no significant effect on either cross-contamination (uninoculated carcasses showing contamination with marker organisms after chilling) or elimination of Salmonella from the inoculated carcasses. Fewer uninoculated carcasses showed marker Salmonella contamination after chilling with 50 ppm of chlorine than 0 ppm, but cross-contamination was not eliminated. Chlorine in the chilling water decreased rapidly due to the effect of organic matter.

Impact of Growth Phase and Natural Organic Matter on the Attachment Kinetics of Salmonella typhimurium to Solid Surfaces

2015 ◽  
Vol 32 (2) ◽  
pp. 111-120 ◽  
Author(s):  
Indranil Chowdhury ◽  
Olgun Zorlu ◽  
Sharon L. Walker ◽  
Berat Zeki Haznedaroglu
Keyword(s):  
Organic Matter ◽  
Salmonella Typhimurium ◽  
Natural Organic Matter ◽  
Growth Phase ◽  
Solid Surfaces ◽  
Kinetics Of

scholarly journals Inactivation of Salmonella Typhimurium by Non-Thermal Plasma Bubbles: Exploring the Key Reactive Species and the Influence of Organic Matter

Foods ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1689
Author(s):  
Ki Ho Baek ◽  
Ye Seul Heo ◽  
Joo Young Park ◽  
Taemin Kang ◽  
Yee Eun Lee ◽  
...  
Keyword(s):  
Organic Matter ◽  
Salmonella Typhimurium ◽  
Thermal Plasma ◽  
Treatment Time ◽  
Reactive Species ◽  
Dependent Manner ◽  
Log Reduction ◽  
Plasma Bubbles ◽  
Non Thermal Plasma ◽  
Inactivation Efficiency

The key reactive species generated by non-thermal plasma bubbles for the inactivation of Salmonella Typhimurium and the effects of organic matter on the inactivation efficacy were investigated. Plasma, which is primarily composed of ozone (O3), was generated by dielectric barrier discharge and injected into a solution (400 mL) as a bubble. The surviving population of S. Typhimurium decreased in proportion to the treatment time, resulting in a 5.29 log reduction after 5 min of treatment. Verification tests to specify key reactive species were conducted using an O3 destruction unit and reactive oxygen species scavengers. The results indicated that singlet oxygen (1O2) contributes substantially to the inactivation of S. Typhimurium, and that the presence of superoxide anion radicals (O2·−) from O3 is essential for the production of 1O2. When a S. Typhimurium suspension containing organic matter (final concentration: 0, 0.005, 0.05, 0.1, and 0.5 g/L), consisting of beef extract and peptone, was treated with plasma bubbles for 5, 10, 15, 20, 25, and 30 min, respectively, the potential of the plasma bubbles for inactivating S. Typhimurium successfully was verified with longer contact time, despite organic matter attenuating the inactivation efficiency in a dose-dependent manner.

Effect of organic matter and pH on the resistance of Salmonella Typhimurium and Salmonella Derby in scalding water from pig slaughter

2018 ◽  
Vol 38 (5) ◽  
pp. e12504
Author(s):  
Jorge Minor Fernandes Inagaki ◽  
Mallu Jagnow Sereno ◽  
Kadigia Pegoraro ◽  
Mykaella Zanatta Waz ◽  
Vanessa Mendonça Soares ◽  
...  
Keyword(s):  
Organic Matter ◽  
Salmonella Typhimurium

Freeze-dried dispersions for automated SEM analysis of individual submicron airborne particulates

1992 ◽  
Vol 50 (1) ◽  
pp. 408-409
Author(s):  
Karen A. Katrinak ◽  
David W. Brekke ◽  
John P. Hurley
Keyword(s):  
Air Pollutants ◽  
Size Range ◽  
Sem Analysis ◽  
Individual Particle ◽  
Chemical Data ◽  
Particle Analysis ◽  
Bulk Analysis ◽  
Airborne Particulates ◽  
Freeze Dried ◽  
Individual Particle Analysis

Individual-particle analysis is well established as an alternative to bulk analysis of airborne particulates. It yields size and chemical data on a particle-by-particle basis, information that is critical in predicting the behavior of air pollutants. Individual-particle analysis is especially important for particles with diameter < 1 μm, because particles in this size range have a disproportionately large effect on atmospheric visibility and health.

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